first commit

lib/BLECast

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+Subproject commit 1a0e347eb0534a2b1a1970110cdba4d3126db764

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:seeed_xiao_esp32c3]
+platform = espressif32
+board = seeed_xiao_esp32c3
+framework = arduino
+monitor_speed = 115200
+monitor_port = /dev/ttyACM0
+upload_port = /dev/ttyACM0
+lib_deps = 
+	paulstoffregen/OneWire@^2.3.7
+	milesburton/DallasTemperature@^3.11.0

src/main.cpp

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+#include <Arduino.h>
+
+#define uS_TO_S_FACTOR 1000000  /* Conversion factor for micro seconds to seconds */
+#define TIME_TO_SLEEP  5        /* Time ESP32 will go to sleep (in seconds) */
+
+
+void print_wakeup_reason() {
+  esp_sleep_wakeup_cause_t wakeup_reason;
+
+  wakeup_reason = esp_sleep_get_wakeup_cause();
+
+  switch(wakeup_reason)
+  {
+    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
+    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
+    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
+    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
+    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
+    case ESP_SLEEP_WAKEUP_GPIO : Serial.println("Wakeup caused by GPIO0"); break;
+
+    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
+  }
+}
+void deepsleep_fix_check() {
+  esp_sleep_wakeup_cause_t wakeup_reason;
+
+  wakeup_reason = esp_sleep_get_wakeup_cause();
+
+  switch(wakeup_reason)
+  {
+    case ESP_SLEEP_WAKEUP_GPIO : 
+    
+      esp_cpu_reset(0);
+      esp_cpu_reset(1);
+    break;
+
+    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
+  }
+}
+
+
+
+#include <OneWire.h>
+#include <DallasTemperature.h>
+OneWire oneWire(D0);
+DallasTemperature sensors(&oneWire);
+uint8_t sensorCount = 0;
+DeviceAddress devices[20];
+int32_t rawTemperatures[20];
+
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+#include <BLE2902.h>
+
+#include <BLECast.h>
+BLECast bleCast("cat");
+
+void tempSetup() {
+  sensors.begin();
+  sensors.setResolution(12);
+}
+void tempLoop() {
+  uint8_t scanOffset = 0;
+  do {
+    byte i;
+    if (!oneWire.search(devices[scanOffset])) {
+      oneWire.reset_search();
+      delay(250);
+      break;
+    }
+    
+    Serial.print("ScanOffset="); Serial.print(scanOffset);
+    Serial.print(" ROM =");
+    for (i = 0; i < 8; i++) Serial.print(devices[scanOffset][i], HEX);
+    Serial.println();
+    scanOffset++;
+  } while (true);
+  delay(250);
+
+  Serial.print("Requesting temperatures...");
+  sensors.requestTemperatures();
+  Serial.println("DONE");
+  //
+  for (uint8_t addressIndex = 0; addressIndex < scanOffset; addressIndex++) {
+    sensors.setResolution(devices[addressIndex], 12);
+    Serial.print("ScanOffset="); Serial.print(addressIndex);
+    Serial.print("=");
+    for (uint8_t i = 0; i < 8; i++) Serial.print(devices[addressIndex][i], HEX);
+    Serial.print("=");
+    int32_t temp = sensors.getTemp(devices[addressIndex]);
+    Serial.print(temp);
+    Serial.print("=");
+    Serial.println(sensors.rawToCelsius(temp));
+    rawTemperatures[addressIndex] = temp;
+  }
+  sensorCount = scanOffset;
+}
+
+uint16_t batteryMillivolts = 0;
+uint8_t batteryLevel = 0;
+void battSetup(){
+  pinMode(A1, INPUT);
+}
+void battLoop() {
+  uint32_t Vbatt = 0;
+  for (int i = 0; i < 16; i++) Vbatt = Vbatt + analogReadMilliVolts(A1); // denoise ADC
+  Serial.println(Vbatt / 16, 3);
+  float Vbattf = 1.455 * Vbatt / 16; /// 1000.0;
+  Serial.println(Vbattf, 3);
+  batteryMillivolts = (uint16_t)Vbattf;
+  delay(1000);
+}
+
+void setup() {
+  Serial.begin(115200);
+  delay(1000);
+
+  deepsleep_fix_check();
+  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
+
+  tempSetup();
+  battSetup();
+
+  bleCast.begin();
+}
+
+struct AdvDataTemps {
+  uint16_t vBatt;
+  uint16_t addr1;
+  int16_t temp1;
+  uint16_t addr2;
+  int16_t temp2;
+  uint16_t addr3;
+  int16_t temp3;
+  uint16_t addr4;
+  int16_t temp4;
+  uint16_t addr5;
+  int16_t temp5;
+} advdat;
+uint16_t getSensorAddrShort(uint8_t index) {
+  uint16_t res = 0x0000;
+  res = devices[index][6] << 8;
+  res = res | devices[index][7];
+  return res;
+}
+uint8_t sensorOffset = 0;
+uint8_t loopCounter = 0;
+void loop() {
+  if (loopCounter++ >= 3){
+    Serial.println("going to sleep now");
+    delay(1000);
+
+    bleCast.end();
+    oneWire.reset();
+
+    esp_deep_sleep_start();
+
+    return;
+  }
+
+  tempLoop();
+  battLoop();
+
+  advdat.vBatt = batteryMillivolts;
+
+  advdat.addr1 = getSensorAddrShort(sensorOffset);
+  advdat.temp1 = (int16_t)rawTemperatures[sensorOffset];
+  
+  sensorOffset++;
+  if (sensorOffset >= sensorCount) sensorOffset = 0;
+  advdat.addr2 = getSensorAddrShort(sensorOffset);
+  advdat.temp2 = (int16_t)rawTemperatures[sensorOffset];
+
+  sensorOffset++;
+  if (sensorOffset >= sensorCount) sensorOffset = 0;
+  advdat.addr3 = getSensorAddrShort(sensorOffset);
+  advdat.temp3 = (int16_t)rawTemperatures[sensorOffset];
+
+  sensorOffset++;
+  if (sensorOffset >= sensorCount) sensorOffset = 0;
+  advdat.addr4 = getSensorAddrShort(sensorOffset);
+  advdat.temp4 = (int16_t)rawTemperatures[sensorOffset];
+
+  sensorOffset++;
+  if (sensorOffset >= sensorCount) sensorOffset = 0;
+  advdat.addr5 = getSensorAddrShort(sensorOffset);
+  advdat.temp5 = (int16_t)rawTemperatures[sensorOffset];
+
+  sensorOffset++;
+  if (sensorOffset >= sensorCount) sensorOffset = 0;
+
+  Serial.print("ManufData="); 
+  for (uint8_t i = 0; i < sizeof(advdat); i++) Serial.print(((char*)&advdat)[i], HEX);
+  Serial.println();
+
+  bleCast.setManufacturerData((char*)&advdat, sizeof(advdat));
+  
+  delay (1000);
+}

test/README

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+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html